Staff at the Kilteel Inn suffered a horrific ordeal when three armed and masked men entered the rural pub after midnight on Sunday night.
The men were armed with a hand gun, cleavers and a claw hammer.
They threatened the two staff members before eventually locking them in a downstairs office.
The men took cash, cigarettes and mobile phones.
It is understood the staff members were locked in for an hour.
The scene was preserved for technical examination, and Gardai would like to speak to anyone who may have seen anything unusual at the pub at around 12.30am.
The Garda investigation continues.